*{
    margin: 0;
    padding: 0;
    list-style: none;
}

.top{
    width: 100%;
    height: 100px;
    display: flex;
    flex-direction: row;
    justify-content: center;
    border-top:1px solid #e5e3e3;
    border-bottom:1px solid #e5e3e3;
}
.top>.log{
    width: 10%;
    height: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
}
.top>.city{
    width: 5%;
    height: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
}
.top>.nav{
    width: 40%;
    height: 100%;
}
.top>.nav>ul{
    width: 100%;
    height: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
}
.top>.nav>ul>li{
    width: 14%;
    height: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 20px;
    cursor: pointer;
}
.top>.nav>ul>li:hover{
    color: red;
}
.top>.app{
    width: 8%;
    height: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 20px;
}
.top>.search{
    width: 20%;
    height: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
}
.top>.search>.input{
    height: 35px;
    width: 60%;
    border:1px solid gray;
    border-radius:25px;
    outline:none;/*标签输入框被选中时的边框不显示*/
    text-indent: 15px;/*输入框文字距离调整*/
}
.top>.search>.doSearch{
    width: 40px;
    height: 40px;
    border-radius: 30px;
    background-color: red;
    margin-left: -27px;
    background-image: url("");
}